🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.35 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.69 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 740.2

Radius: 11.2

Gravity: 5.9 G

Time & Orbit

Eccentricity (e): 0.106

Orbit Range: 0.62 AU - 0.76 AU

Year: 396 Days

Day: 10.8 Hours

Environment

Temp: -160 °C

Axial Tilt: 34.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 32,989,534 km

• M1: 139,425 km (0.111 R)
• M2: 560,992 km (0.078 R)
• M3: 1,071,270 km (0.118 R)
• M4: 1,480,121 km (0.096 R)
• M5: 1,977,534 km (0.049 R)
• M6: 2,342,553 km (0.098 R)
• M7: 3,111,337 km (0.101 R)
• M8: 3,501,039 km (0.042 R)
• M9: 4,067,117 km (0.064 R)
• M10: 4,811,516 km (0.051 R)
• M11: 5,192,991 km (0.052 R)
• M12: 5,694,293 km (0.038 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.72 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 968.4

Radius: 14.5

Gravity: 4.61 G

Time & Orbit

Eccentricity (e): 0.2

Orbit Range: 0.58 AU - 0.86 AU

Year: 422 Days

Day: 5.1 Hours

Environment

Temp: -161 °C

Axial Tilt: 12.3 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (10)

Outer Limit: 32,989,534 km

• M1: 180,714 km (0.074 R)
• M2: 757,863 km (0.114 R)
• M3: 1,211,892 km (0.089 R)
• M4: 1,742,366 km (0.037 R)
• M5: 2,253,243 km (0.071 R)
• M6: 2,717,296 km (0.075 R)
• M7: 3,222,637 km (0.059 R)
• M8: 3,764,780 km (0.094 R)
• M9: 5,051,023 km (0.04 R)
• M10: 5,717,481 km (0.114 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.96 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 431.2

Radius: 12.4

Gravity: 2.8 G

Time & Orbit

Eccentricity (e): 0.143

Orbit Range: 0.82 AU - 1.1 AU

Year: 649 Days

Day: 12.4 Hours

Environment

Temp: -176 °C

Axial Tilt: 19.4 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (13)

Outer Limit: 32,989,534 km

• M1: 154,834 km (0.085 R)
• M2: 575,353 km (0.115 R)
• M3: 979,118 km (0.032 R)
• M4: 1,418,936 km (0.117 R)
• M5: 2,077,615 km (0.102 R)
• M6: 2,759,632 km (0.03 R)
• M7: 3,386,597 km (0.086 R)
• M8: 3,860,373 km (0.074 R)
• M9: 4,363,919 km (0.099 R)
• M10: 4,974,578 km (0.065 R)
• M11: 5,401,680 km (0.079 R)
• M12: 6,106,585 km (0.082 R)
• M13: 6,597,266 km (0.057 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.92 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 354.8

Radius: 13

Gravity: 2.1 G

Time & Orbit

Eccentricity (e): 0.238

Orbit Range: 1.46 AU - 2.38 AU

Year: 1836 Days

Day: 11.5 Hours

Environment

Temp: -208 °C

Axial Tilt: 7.9 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 32,989,534 km

• M1: 161,715 km (0.106 R)
• M2: 1,228,797 km (0.057 R)
• M3: 1,978,881 km (0.117 R)
• M4: 3,319,577 km (0.071 R)
• M5: 4,518,005 km (0.113 R)
• M6: 5,115,649 km (0.114 R)
• M7: 6,399,498 km (0.072 R)
• M8: 7,180,399 km (0.114 R)
• M9: 8,903,018 km (0.026 R)
• M10: 9,350,914 km (0.112 R)
• M11: 10,163,231 km (0.112 R)
• M12: 11,821,224 km (0.116 R)

Planet 5 - Gas Giant

Semi-Major Axis: 3.25 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 156.3

Radius: 12.6

Gravity: 0.98 G

Time & Orbit

Eccentricity (e): 0.02

Orbit Range: 3.19 AU - 3.32 AU

Year: 4044 Days

Day: 11.9 Hours

Environment

Temp: -215 °C

Axial Tilt: 12.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 32,989,534 km

• M1: 159,771 km (0.106 R)
• M2: 563,834 km (0.086 R)
• M3: 986,448 km (0.076 R)
• M4: 1,489,546 km (0.113 R)
• M5: 1,977,385 km (0.102 R)
• M6: 2,374,118 km (0.044 R)
• M7: 3,757,001 km (0.099 R)
• M8: 4,256,508 km (0.114 R)
• M9: 4,716,821 km (0.104 R)
• M10: 5,412,750 km (0.1 R)
• M11: 5,954,444 km (0.073 R)
• M12: 7,313,690 km (0.115 R)
• M13: 7,888,296 km (0.083 R)
• M14: 9,625,127 km (0.117 R)
• M15: 10,175,348 km (0.048 R)
• M16: 11,263,373 km (0.102 R)
• M17: 12,030,810 km (0.07 R)
• M18: 14,633,065 km (0.05 R)

Planet 6 - Gas Giant

Semi-Major Axis: 4.65 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 998.6

Radius: 10.4

Gravity: 9.23 G

Time & Orbit

Eccentricity (e): 0.224

Orbit Range: 3.61 AU - 5.69 AU

Year: 6921 Days

Day: 5.7 Hours

Environment

Temp: -223 °C

Axial Tilt: 110 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (32)

Outer Limit: 32,989,534 km

• M1: 129,552 km (0.07 R)
• M2: 463,454 km (0.104 R)
• M3: 791,822 km (0.088 R)
• M4: 1,195,736 km (0.12 R)
• M5: 2,123,991 km (0.081 R)
• M6: 2,474,199 km (0.08 R)
• M7: 2,822,463 km (0.096 R)
• M8: 3,270,509 km (0.044 R)
• M9: 4,730,733 km (0.094 R)
• M10: 5,056,558 km (0.11 R)
• M11: 6,405,631 km (0.117 R)
• M12: 7,030,352 km (0.1 R)
• M13: 9,287,185 km (0.104 R)
• M14: 10,331,827 km (0.049 R)
• M15: 11,506,021 km (0.089 R)
• M16: 12,263,136 km (0.074 R)
• M17: 15,432,367 km (0.1 R)
• M18: 18,521,264 km (0.057 R)
• M19: 19,334,627 km (0.11 R)
• M20: 20,795,600 km (0.095 R)
• M21: 21,593,405 km (0.027 R)
• M22: 22,081,842 km (0.101 R)
• M23: 26,443,219 km (0.039 R)
• M24: 27,474,397 km (0.075 R)
• M25: 27,951,913 km (0.039 R)
• M26: 30,220,116 km (0.119 R)
• M27: 33,576,045 km (0.111 R)
• M28: 35,908,725 km (0.097 R)
• M29: 36,940,801 km (0.105 R)
• M30: 39,546,646 km (0.034 R)
• M31: 40,278,180 km (0.054 R)
• M32: 40,894,523 km (0.107 R)

Planet 7 - Ice Giant

Semi-Major Axis: 5.81 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 610.2

Radius: 7.2

Gravity: 11.77 G

Time & Orbit

Eccentricity (e): 0.213

Orbit Range: 4.57 AU - 7.05 AU

Year: 9667 Days

Day: 16.8 Hours

Environment

Temp: -223 °C

Axial Tilt: 152.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (22)

Outer Limit: 32,989,534 km

• M1: 90,357 km (0.098 R)
• M2: 418,126 km (0.118 R)
• M3: 651,499 km (0.043 R)
• M4: 3,305,814 km (0.099 R)
• M5: 4,556,003 km (0.115 R)
• M6: 5,066,132 km (0.076 R)
• M7: 5,782,406 km (0.083 R)
• M8: 7,136,118 km (0.086 R)
• M9: 8,555,502 km (0.117 R)
• M10: 10,659,447 km (0.049 R)
• M11: 11,720,993 km (0.107 R)
• M12: 17,238,163 km (0.08 R)
• M13: 17,884,725 km (0.1 R)
• M14: 19,226,318 km (0.12 R)
• M15: 23,564,357 km (0.11 R)
• M16: 25,913,194 km (0.075 R)
• M17: 27,240,426 km (0.106 R)
• M18: 29,927,204 km (0.119 R)
• M19: 31,599,857 km (0.048 R)
• M20: 33,666,103 km (0.112 R)
• M21: 37,346,809 km (0.117 R)
• M22: 38,671,648 km (0.09 R)

Planet 8 - Ice Giant

Semi-Major Axis: 6.75 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 152.4

Radius: 4.9

Gravity: 6.35 G

Time & Orbit

Eccentricity (e): 0.021

Orbit Range: 6.61 AU - 6.89 AU

Year: 12105 Days

Day: 20.9 Hours

Environment

Temp: -237 °C

Axial Tilt: 31.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 32,989,534 km

• M1: 84,972 km (0.095 R)
• M2: 353,051 km (0.116 R)
• M3: 738,265 km (0.109 R)
• M4: 4,030,615 km (0.095 R)
• M5: 5,509,540 km (0.08 R)
• M6: 6,223,571 km (0.12 R)
• M7: 11,996,403 km (0.053 R)
• M8: 20,426,243 km (0.104 R)
• M9: 22,577,460 km (0.055 R)
• M10: 23,668,029 km (0.119 R)
• M11: 25,038,944 km (0.1 R)
• M12: 29,194,024 km (0.043 R)

Kuiper Belt

Range: 30 - 59 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 417 - 12,800 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit